The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 17, 1985
Filed:
May. 12, 1980
Applicant:
Inventor:
Stewart W Roach, Seattle, WA (US);
Assignee:
Marco Seattle, Inc., Seattle, WA (US);
Primary Examiner:
Int. Cl.
CPC ...
F04F / ;
U.S. Cl.
CPC ...
417 54 ; 43-45 ; 43-65 ; 417 87 ; 417 90 ;
Abstract
An article transfer pumping system combining the effects of a jet pump and an air lift pump to minimize article damage while increasing lift capability and overall system efficiency. Air lift pump placement adjacent the pump inlet aerates the rising column of water with articles such as fish, even large salmon, being raised by the jet pump, whereas jet pump placement adjacent the discharge end of the conduit increases pump efficiency.